Searchlight Pictures has suspended production of the film Being Mortal after a complaint was filed last week about "inappropriate behavior,"

reportedly by actor Bill Murray. The production company sent a letter to the cast and crew this week

saying it was looking into a complaint, though it did not say who or what it was about.

"After reviewing the circumstances, it has been decided that production cannot continue at this time," the memo read.

"We are truly grateful to all of you for everything you've put into this project.

Our hope is to resume production." It's unclear whether Murray will be replaced in the movie,

which began production at the end of March. Actor Aziz Ansari wrote the script,

based on the nonfiction book Being Mortal: Medicine and What Matters in the End.

Ansari was also making his directorial debut on this film, and acting in it, along with Murray and Seth Rogan.

Searchlight's memo, confirmed to NPR, also said the company is working with Ansari and his production partner

Bill Murray film